If 10 year T bonds have a yield of 5.2%, 10 year corporate bonds yield 7.5%, the maturity risk premium on all 10 year bonds is 1.1%, and corporate bonds have a 0.2% liquidity premium versus a zero liquidity premium for T bonds, what is the default risk premium on the corporate bond?
a)2.1% b)5.2% c)5.4% D)7.5%